|Geologic age||Pennsylvanian (Kasimovian)|
Sedimentary > Clastic > Mudstone > Shale (Bed, Carbonaceous)Shale can be silty and carbonaceous.
Sedimentary > Coal (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
|Comments||Thickness from stratigraphic columns: Mattoon Fm (0-600’) in southern Illinois (south of 40 degrees north latitude); Mattoon Fm (0-70’) in northern Illinois (north of 40 degrees north latitude). The Mattoon Formation represents the uppermost part of the McLeansboro Group. The Mattoon Formation in southern Illinois includes, from oldest to youngest, the Shumway Limestone, Bogota Limestone, Greenup Limestone, and Woodbury Limestone.|
|Stratigraphic units||Shumway Limestone, Bogota Limestone, Greenup Limestone, Woodbury Limestone|
Kolata, D.R., comp., 2005, Bedrock Geology of Illinois: Champaign, Ill., Illinois State Geological Survey, Illinois Map Series 14, scale 1:500,000.
|Counties||Bureau - Champaign - Christian - Clark - Clay - Coles - Crawford - Cumberland - Douglas - Edgar - Edwards - Effingham - Fayette - Franklin - Hamilton - Jasper - Jefferson - La Salle - Lawrence - Livingston - McLean - Macon - Marion - Marshall - Montgomery - Moultrie - Piatt - Putnam - Richland - Shelby - Wabash - Washington - Wayne - White - Woodford|